notes about jar files in lib dir: commons-pool-1.2.jar - for connection pools and dbcp commons-collections-3.1.jar - for commons-pool-1.2.jar These previous two jars were not in the lib directory because we had been putting them in tomcat/common/lib for the server.xml database connection. cos.jar com.oreilly.servlet.* classes. Many different utilities for servlets from http://servlets.com/cos/ There is a set of file upload tools, an email utility, a cache, a base64 encode/decode, a parameter parser. updated by bdc who need ServletUtils.